Correlation between the head width and larval instars of Sitophilus zeamais (Coleoptera: Curculionidae), and some morphological characteristics of its developmental stages

Abstract

This paper presents the correlation between head width and larval instars of the maize weevil Sitophilus zeamais (Coleoptera: Curculionidae) in maize granaries in Son La province. Results showed that there is a strong correlation between head width and age of maize weevil larvae...